made it harder to operate and cross the border and the u.s. government did it well, made it harder to bring cocaine into the country and go across highways and they are fighting with each other, over territory which is valuable, right now and the bad news is, now they've created the violence, among the cartels, now starting to affect civilians it isn't clear whether the mexican government has the ability to step in and tamp down the violence. bill: they've had a measure of success but you aren't convince they'd can finish the job. >> eventually they'll have to, but it will take scaling up, in terms of the competence of the police, dealing with corruption inside the police forces and reforming the judicial system, developing new kind of intelligence, they are working on these thing but it will take time, and, my guess is, it is -- the violence will be there for a few years until they are able to really raise the costs of violence for the cartels. now, the -- >> what do you mean, raise the cost of violence. >> cartels don't fear having a shootout in the downtown of a border city or s
